The il (Hebrew) keyboard mapping should map CTRL+<KEY> and CTRL+SHIFT+<KEY> as
it maps them for the us (English) layout. Without this mapping, common shortcut
keys, such as CTRL+A ('select-all') will not function.
The proposed fix is the common mapping for il (Hebrew) keyboards.
Key Current Mapping Proposed fix
CTRL+A CTRL+HEBREW_SHIN CTRL+A
CTRL+Z CTRL+HEBREW_ZAIN CTRL+Z
CTRL+SHIFT+A CTRL+SHIFT+HEBREW_SHIN CTRL+SHIFT+A
CTRL+SHIFT+Z CTRL+SHIFT+HEBREW_ZAIN CTRL+SHIFT+Z
If you load both "us" and "il" keys it will work like that;
if you load only "il" then Ctrl-A etc won't work, obviously,
as there is no <a> keysym at all.
It is not an XKB problem, rather it is a problem of the
keyboard switcher applet/program you are using (I bet you
are using KDE; if you go to KDE bug tracking you will
see various reports of that problem, about russian,
cyrillic, greek,... any non-latin layout actually).
right. you'll need to take this up with gnome and kde.